Sound-conveyer for talking-machines.



A. A. HUSEBY.,

SOUND CONVEYER FOR TALKING MACHINES.

APPLICATlON FILED JULY 5.1917.

*1 ,26 1 54 1 Patented Apr. 2, 1918.

2 SHEETS-SHEET I.

A. A. HUSEBY.

souwo CONVEYER FOR TALKING MACHINES.

APPLICATION FILED JULY 5. I917.

Patented Apr. 2, 1918.

2 SHEETS--SHEET 2.

r m m v 5 1 w w A W w a f w E mm HUSEBY, e

L lli limit exited Apr. 72, li -b llin Application filcrl July 5;. Sena! Tjl'oi 176,658.

. the United Uh'cage, in the country of Cook and State :3 of Illinois, have ii'nenled certain new Hid use ul Improvements in S0\H'ld-COHVGYGIS fer Talknglliaehines of which the follow--- ispeeifieefiien.

.nventien i'zfiutee lie imprm'emezi35 i,i sound eejm'eyers for (a :1 machines and 'th hief piir t-ese '01" ehjeeu (if the im'e' Le i'aim'ule a s-euncle0: '3 net will; (L pli and "eriiieeliy T905 zieh 0 said 1 12's; in the mesa;

40 1; cure lhi: repi-mhiemoii o; the

e56, granted .7 (3, I have disclosed n'isingz a lower, gen- (i ei'iiil'y up ijfli'iifll having; :1 clnwnwiu'iiily mid feswmxlly curve-(l f'vi'i a and an upper, generally heiii'ienta mile-mini new ion rigidl l secured 1:0 maid meuniecl on an. i on, the entire structure being sup- L h capacity fer liliifiltll swinging on e single llOilYIOiY-Qlll pivot the eh coincident with Lhe center eel delivery mmith 9;? The lower she eoni'eyer. l'. have found than, OZlVfiIYQ'i. of this u'mvti'ueivien lepteil be iLne dyingof disk hrxzemlly m .1011. greme i. mix the? the point ei'" ie in a weight; line it'zicliully while the needle ifsel'i is cal plane mat is suhstmr 'siiellfi to the greeve et the peiiii v 01 eiigagement of The groove by the needle. U21 the ether hand, I have found that for ihe playing 01 disk recercis of the vertically undulmiiiigg 0i hill and dale type the above (lfif'fiilbed censtrueliien does not yield geocl results as are ebmined by the generally used verl i Jelly pivoted tone-arm swinging in hotrizent plane wherein the point of iii the needle travels 111 am are el' a circle across 1, A:v Sill) LACE reem'cl dish. The hill and cums-e, imparts :1 vertical whole annual-box which f in. me el'her 'ype of r vii u'temlei'wy for: the pains oi elf ahe gR'iOOVQ es-qim iz'ecel'fis lmving very of the and "his team icy, as I have found by my meious QIQPii'lZllGIlLS is more pi'oiu'mncei'l in {he (use of the eeiisfi'i'uetien of my prior .):ihent'z1h-uVe '1 "ed (0 than in the ease of \ertienliy ppm'ml LOXlQr-fil'll].

4'; rseeerfl in L and woiizhl v'i F4351: lie.

in erw'ier that my present inven'llien. mode 0% UPCliiillOl! :uul. .mlvaningee mi: rs-nu'iily llllliblrlififiil by iii'lUSE Skilled. in mi. l have illnm'tmimlin the 226C011 ;iyi".i;;g' lll'ZHYlllgri one .piiieiuicnl and preferred em lJUfll'xHiElli thereof, and 1""i'l71g' ihzavele--- Figure l is a vertical. seeiion threw uppei' portion of L1 'i'alking ineehiiie a. with certain 0'5 ihe interior parts zippezi in SNiLiO'il :mil others in elm" l ig 2 is ii lep plan View 1\ moved;

i igg. is; a (lei'nil view on :m'enlar ii. in !'l'ld31li section Lhi'ough the join?heimeeu the upper and lower sections of the sound (;()I1\'GV(--1';

line V I Fig.1. 5 ""wigln'ienlzliy vertical secliei similar in P W hut illusi'i a: poeiiion of the two sec-A ie: (-uiii'evei';

l ige. (i and. 7 age (lemii views in 'lhe name: of dizlfiiillliS designed to iillusi rsiw the iliil'ei'ei'it; iOliLEliHiS of the 110065.10 and record were of a lzziernvlly cull reveril Where the point of the needle moves in a radial lin and Where it A \08 in the are 01* a cirele ever the face 03f the record;

Figs. 8 aux sing; ihe lock i 9 are views similar to Fig 6 wind 7 respeci'ivelv and illustrate the re latiens of the needle and groove of a vextienlly cut record where the needle moves 'arlinlly and where it' moves in the are of :1 oil-ale ever the fave of (he record.

First briefly describing the principal parts \Yilh which my llliI'H'OYCll sound eonveyer ci \PIHE'HUJS. i liPSlQ'H liiS as an entirely the upper erl ion. if :he box or cabinet in which file principal pm ml? the mechanism uz'e hnuswh and ilesigriules the hinged he '2.

Biennial ml the l'op Wall. 3 01 t mounted the usual turntable 5 driven by a spring motor conventionally illustrated at 6, these parts being of ordinary or usual con struction.

7 designates the generally-upright portion of the sound conveyor, the same consisting of a downwardly and forwardly curved tapered or flaring member that terminates at its lower end in a vertical delivery mouth 8. This member 7 is pivotally mounted for lateral swinging movement by means of a pivot shaft 9 carried by a rearwardly extending lug or bracket 10, said shaft having knifeedge bearings in a suitable support 11, and carrying a counterweight l2 suspended therefrom, by which the lateral swinging movements of the entire sound conveyer are counterbalanced. For a more detailed description of the pivotal mounting of the member 7, reference may be had to my former patent above referred to.

13 designates as an entirety the upper horizontal tone-arm portion of the sound conveyer, in the forward end of which 1s swiveled an angularly projecting extension 14 carrying the sound box 15. The tone arm 13 is also formed with a downwardly turned portion 16, the lower end of which, as most clearly shown in Fig. 3. fits into a sleeve member 17 that is rigidly secured on the upper end of the lower section 7. as by screws 18, and virtually forms a part or extension of said lower section 7. The vertical end portion 16 of the tone-arm 13 and the upper end of the sleeve 17 are formed with mating flanges 19 and 20, respectively. the meeting faces of which are concave, forming a ball-race for an anti-friction bearing .21. On the sleeve 17 is a hollow lateral lug 22 in which is slid-ably mounted a spring-actuated locking bolt 23. the inner end of which is movable into and out of engagement with a hole 2% in the wall of the member 16. The head of the bolt 23 carries an inwardly projecting pin 55, which.

i when the bolt is in looking position, enters a, hole 22 in the outer edge of the lug 22, but which, when the bolt is retracted and turned slightly, bears against the outeredge of the lug 22 and holds the bolt in unlocking position, permitting a free relative swiveling movement of the tone arm on the lower section of the sound conveyor.

The two sections of the sound conveyor are confined ,against lengthwise separation by means of a pin 26 mounted in the sleeve 17 and engaging a slot 27in the member 16. which slot is of suficicnt length to accommodate the maximum angular swingof the tone-arm 13 in playing a record.

- When it is desired to play a laterally cut record, the bolt 93 is. left in locking position as shown in at which time the upper of the sound conveyor "a. c7 and lower sections are rigidly connected and the upper section manner.

has only the swinging movement imparted; to it by the lower section. At this time the sound box is turned through an angle of from the position shown in Figs. 1 and 2, in which position the sound box is adapted for the playing of a laterally cut record. During the playing of the record the point -of the needle travels in a straight radial line over the face of the record. owing to the fact that the sound conveyor as a whole swings only on its horizontal pivot. \Vhen. however it is desired to play a record oil the vertically cut. or hill and dale type. the locle ing bolt 23 is withdrawn and turned slightly so as to hold it out of locking position through engagement of the pin'25 with the edge or flange of the lug and this leaves the upper or tone-arm section free to swing in a horizontal plane on the vertical joint of the sound conveyor. At this time the sound-box is turned to the position shown in Figs. 1 and f2 fin the playing of a, verticallycut record. and the lower section of the sound conveyer is locked against swinging movement on the horizontal pivot by means of a catch block mounted on a spring arm 2!) that is secured at its lower end to the wall 3 just in rear of the vertical Eli joint of the sound conveyor. This catch' *hlocK 28 has a vertical groove or recessed face 28, best shown in Fig. l. that engages a nut 30 on the outer end of the locking bolt 23 with sullicient force to resist displacement under the swinging movement of the upper or tone-arm section of the sound conveyor. in rear of the block 28 and its arm 29 is preferably located a guard post 31 designed to limit the backward swing of the spring arm 25) and prevent it from being bent back too far to be operative through accident or otherwise. From this it will be soon that the retraction of the locking: bolt so as to leave the tone-arm free to swing on the lower section of the sound conveyor simultaneouslyplaces the head of the locking bolt in position to cooperate with the catch 28 to thereby lock the lower section of tho. sound conveyor against swinging movement; and, conversely. when the locking bolt is allowed to return to inching position. the lower section of the sound conveyer is simultanczmsly released so as to be capable of swinging on the horizontal pivot. Figs 6 and T are comparative views intended to illustrate the advantage, in the playing of a laterally cut record. of the herein described construction wherein the needle travels in a straight radial line across the face of the record over the construction wherein the ncedlc. carried at the free end of a vertically pivoted horizontally swinging tone-arm, travels in the arc of a circle across the face of the record. in both cases the needle is inclined at an angle of about sixty degrees to the surface of the record of record.

the oove at the point oi co; but cuts acr groove: at a sharp an in. llllt-l an alrinc: nngg'liroin. the innermost lo the outernioat turn of the spirally 't'orine l groove. ".lhe resi'ilt oil lh'is is; that tho ggrooveengjag;- ing p rlion of the needle (0.111% or tilts slightly transversely of the groove. as shown by the needle A in l ig. T. the akxil'l'lillll, point of the needle lending to cliinh the outnr wall of the groove, and the inner side of the neodlo hugging the inner wall of lhe ggjroove with undue -Friction. "his is the principal cause of the ncratching and hissing noise that accompanies the plaving oi laterally out records with th lllitlof a vertically pivoted oniallv swinging tow-arm. ln nrv it constract-ion which perluhs lhe nor-- (lie. when playing; a laterally cut record. to he always in a vertical plane lhal i5 Qan-- gential to the groove at the point ol contact and to travel in a slra it radial line across; the face ol the disi. thin diwalrrrcahie so atching and hissing noise is almost on lirely eliininatci'l.

Ver ic -all out records. such an the mom. have coinparatirely shallow groove.-; that are wilnstantiallv seini-circular in cros'e-scclion; and the needle or stylus has a tip in the l'orni a tiny jewel of spherical or hall shape the lower half of which :nhstanlially lilh; the (.l( r-jS-S: Jfl( ll of tho glUUYlL as shown in Fi and 9. .ln this case it will he inanithat so far as corr (q 7 canon; of the J of the noodle with the QQZ'OHYL is roncorned it is immaterial \Ylllllllfl' lhe noodle is alwaysin a vertical plane that is iangeir tial to tho groove. as indicated by the iieoillc ll in n. or ies in a vertical plain that more or less cuts acrosv; the groove as indi canal. h the needle B" in Fig, 9. since in the lotto! case the rantingg or tillingg' of lhe needle inert-l) turns: the 'halhshapeil point slightly in its substantially concentric socket or coat in the groove without any effect on the winking relation hcl ween the two. lint, an; have.lieroinheforo stated. the most perfect, results in playing the wrlicallv (rut records are olitainod by swinging tho (0110 arm only on the vertical pivot orjoiu'l; oi the sound conveyor. since this method not attended hv 't'aultv trackingol? the needle in the groove, and hence I equip the n'iachine with the described means lor looking); -the lower section of tho sound conveyor agninstcwin "on: movement when plaviing this type lly coordinating or conilni'iingr the joint-.locking and the sectioirloching renlial torally :nvivoled on the upper end olj said lower porlion, means for locking said portions rig idly together for the playing of'laterally cut remit-L l and means for holding said lower portion stationary when said locking means is in unlocking position so as to permit a swinging movement of said tone-arm portion on said upright lower portion for the playing of vertically cut records.

lo a talking;- machine. a sound conveyor compi'luing a gcnerallv upright lower porlion. mounted on a horizontal pivot, a gen erally lmriAOlllifll lonoarm portion vertically swivclod on the upper end of. said lower portion. means for looking said portions rigidly lUQ'lllllCl' {or theplaying of laterally rut records. and means cooperating with said locking means in the unlocking position of tho lath-r for holding said lower portion. stationary so as to permit a. swil'iging movemont ol' aaid lone-arm portion on said up right lower portion or the playing of Verticall v out records.

3 in a talking: machine, a sound conveyor comprising a generally upright lower portion niounteiil on a horizontal .pivot, a generally horixon'lal louc-ar1n portion provided with a downwardly turned rear end that forms a vertical swivel joint with the upper end o'l' will lower portion, a sliding bolt en- ;yasztinp we paroa of said swivel joint to lock them against relative turning movement, and a catch cooperating with said bolt when i'hc lallor is withdrawn from looking position to hohl said lower portion against swinging: movenu-ot on its horizontal pivot.

4. .ln :1 lalking machine, a sound convovcr colnprlslng a gvncrallv upright lower porlion inonnl'cd on a horizontal pivot, a generally horizontal lone-arm portion provided with a downwardly turned rear end that :l'ornia a vertical swivel joint with the upper end f mild lUWOI' portion, a sliding bolt (in-- gagii'ig lho parts of said swivel joint to lock them against rolat ire turning inovcmcnt and a spr ng catch auloimlti-allv engaging the head o'l said holt when the latter is retracted and tho said lower portion of the sound eonvcyer swung to its central position to hold the latter againnt wringing on i to horiaoi'ital pivot.

in a talking machine. a bound conveyor com; hung a generally upright lower portion wanted on a. horizontal pivot. a gen:

\erally horizontal toxic-arm portion provided.

lower wun g s poluwn of to YES centr halt en'i agL b'Wn'eJ jomi; tn i001 turning Juan, 5pm

and sparing said;

wad of be? retmcfed 2am Hm said ha 550113151 conveyer posicimx to held the movszmmyi; E311 its ma a sound conveyel :3; por- -0n pro ide i turned rear end that said lower porm a spring'pressed; bofi engaging the parts of said joint to 1001:. them against relative burning; movement, means for holding said bolt, in rem'acted pQsition, an upright spring arm in rear of said bolt, :1 catch-block carried by said arm and adapted to automati- Cally engage til head of said bolt when U16 ia'fi ter is retracted and the said lower portion m smmd conveyer is swung to iis central pamian 50 110151 3 16 latter against swinging 112i) amen? 011 its horimntal pil's'ofi and min 01? said arm to Emit the backward Lfinding znovement (if the, Miter.

' ALBERT A.

swivel joint mm 51-3 uiapezm 

